This, my friends, is Axis of Awesome’s song about a standard 4-chord progression, of which Pachelbel’s Canon is a variant.

Super special thanks to Roho and Annie L., who both sent this video to me. Roho further notes that Leonard Cohen specifically draws attention to such a chord progression in his also-ubiquitous “Hallelujah”: “It goes like this, the fourth, the fifth, the minor fall, and the major lift.”